I had the same issue,
But when I renamed the file i.e. preauth.jsp to a.jsp my problem was solved.
Did you made changes after the first time you saved the preauth.jsp, then I guess try renaming it and access service/a.jsp

I had the same issue,
But when I renamed the file i.e. preauth.jsp to a.jsp my problem was solved.
Did you made changes after the first time you saved the preauth.jsp, then I guess try renaming it and access service/a.jsp

I am new to zimbra and was using soap for the zimbra integration. I have tested the same code and it worked on the test server , but when i used the same code with server on datacenter with same configuration and same OS, I can not login through soap. If anyone can point out my problem, it would be highly appreciated.